1. Clinical Characteristics and Outcomes of Kidney Transplant Recipients With SARS-CoV-2 Reinfections
   Nikolina Basic-Jukic et al, 2022 CrossRef
2. Risk of reinfection and disease after SARS-CoV-2 primary infection: Meta-analysis.
   Maria Elena Flacco et al, 2022, Eur J Clin Invest CrossRef